<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<form action="/upload" method=post enctype=multipart/form-data>
    <p>
        <input type=file name=file>
        <input type=submit value=Upload>
    </p>
</form>

<a href="/download">下载</a>
</body>
</html>